Arthrodesmus incus var. boergesenii Messikommer, 1942 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurodesmus species Staurodesmus boergesenii Name Homonyms Arthrodesmus incus var. boergesenii Messikommer, 1942